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Nickel-metal hydride battery tips

Feb 23, 2022

Q: Will the remaining power of the rechargeable battery affect the battery life after it is fully charged? (For example, the remaining power is 60% and 0% respectively)

A: There is no difference, just the time it takes to fully charge the battery will vary. When the battery is used for a certain period of time, or when it is used to about 80% of its life, the battery life will begin to shorten.


Q: What is the relationship between battery capacity and cycle life?

A: ① Models below AAA600 and below AA1800 (600 and 1800 are battery capacity), the cycle life is relatively long, charging at a current of 0.5C will shorten the cycle life after 8 months or 1 year of use; ② AAA800 and AA2000, after 6 months or 8 months of use, the cycle life will be shorter; ③ AAA800 and AA2000 and above models, after 4 months or 6 months of use, the cycle life will be shorter; ④ Usually, the higher the capacity, the shorter the cycle life. model, the cycle life is relatively short. (ps: The above battery usage time is only for reference. Batteries of different manufacturers will vary due to different production processes, performance, and prices)


Q: What is the relationship between charging current and cycle life?

A: If the charging current is too large, the cycle life of the battery will be shortened in advance; if the charging current is small, the cycle life of the battery will be longer. Taking the time-resistant multi-slot charger as an example, the charging current of the charger is 500mA, and the charging current of the standard four-slot charger is 250mA. The size of the charging current affects the charging speed. The charging time of the multi-slot charger is about 7-8 hours/standard four-slot charger. The charging time of the charger is about: 9 hours or more.


Q: What are the precautions for daily maintenance of NiMH batteries?

A: Do not let the voltage of the battery be lower than 1.20V, it must be charged below this voltage, otherwise, the battery will not be charged if it is idle for a long time. After the voltage is lower than 1.0V, the battery will be easily damaged. Even if it is recharged later, the performance of the battery will recover.


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